<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="javax.xml.transform.Result" %>
<%@ page import="com.mysql.cj.api.mysqla.result.Resultset" %>
<%@ page import="java.sql.*" %><%--
  Created by IntelliJ IDEA.
  User: 阿阿阿阿豪丶
  Date: 2018/3/20
  Time: 16:08
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title></title>
</head>
<body>
<h1>这是一个JSP文件。</h1>

<%

    out.write("hello,world!");


    out.write("<h1>hello,world!</h1>");
    out.write("<a href='addUser.jsp?'>增加</a>");
%>

<style type="text/css">
    table {
        border: 1px solid #000;
        border-collapse: collapse;
    }

    td, th {
        border: 1px solid #000;
        padding: 10px;
    }
</style>

<table>
    <thead>
    <tr>
        <th>编号</th>
        <th>用户名</th>
        <th>密码</th>
        <th>操作一</th>
        <th>操作二</th>
    </tr>
    </thead>

    <tbody>

    <%
        class User {
            int id;
            String name;
            String password;

            //alt + insert


            public User(int id, String name, String password) {
                this.id = id;
                this.name = name;
                this.password = password;
            }
        }

        List<User> list = new ArrayList<User>();
        //list.add(new User(1, "chengongsuo", "123456"));
        //list.add(new User(2, "zhen", "123456"));
        //list.add(new User(3, "John", "123456"));
        //list.add(new User(4, "Bob", "123456"));

        //3 + 1
        Connection connection =null;
        Statement statement = null;
        ResultSet resultSet =null;

        String sql = "select * from t_users";

        Class.forName("com.mysql.jdbc.Driver");

        connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone=UTC",
                "root",
                "123456"

        );

        statement = connection.createStatement();

        resultSet = statement.executeQuery(sql);

        while (resultSet.next()){
            int id = resultSet.getInt(1);
            String username = resultSet.getString(2);
            String password = resultSet.getString(3);

            User user = new User(id,username,password);
            list.add(user);
        }
        statement.close();
        resultSet.close();
        connection.close();


        for (User user : list) {

            out.write("<tr><td>" + user.id + "</td><td>" + user.name
                    + "</td><td>" + user.password + "</td>" +
                    "<td><a href='deleteUserHandler.jsp?id="+user.id+"'>删除</a></td>" +
                    "<td><a href='updateUser.jsp?id="+user.id+"&username="+user.name+"&password="+user.password+"'>更新</a></td></tr>");
        }
    %>
    </tbody>

    <tfoot>


    </tfoot>
</table>

<!--<%@ include file="footer.jsp"%>-->

<!--jsp前缀-->
<jsp:include page="footer.jsp">
    <jsp:param name="year" value="2018"/>
</jsp:include>
</body>
</html>
